Surgical instrument.



-827,193. f PATENTED JIULYSI, 1906.

G. THRASH.

SURGICAL INSTRUMENT. APPLIOATION FILED $EPT.8.1905.

Samantha QXhbnmea i v y" I I 63%16 THE NORRIS PETERS co, wnsnmcron, n.c.

UNITED?!- STATES- PATENT? OFFIGE.

GEORGETHRASH, or, HOMINY, NORTIHQCAVROLINA, ASSIGNOR or one" THIRD TOARTHUR N. PENLAND, or HoM-INY, NORTH CAROLINA...

suRencAL msrnulvuzur."

Specification of Letters Patent.

Application filed September 8. 1905- Serial No. 277.604.

Patented July 31, 1906.

To all whom it may concern.-

Be it knownthat I, GEORGE THRASH, a citizen of the United States,residing at Hominy, in the county of Buncombe and State of NorthCarolina, have invented certain newments and its object is to provide inone in- 'dinally upon the tube 1 an strument a dilator, curette, anddouche which can be used for dilating and thoroughly scraping andcleaning or treating cavities. p

The invention consists of certain novel features of construction andcombination of parts, which will be hereinafter more fully described inthe claims.

In the accompanying drawings I have shown the referred form ofmyinvention. In said awings, Figure l is a side elevation showing thenormal. positions of the parts. Fig. 2 is a similar view showing thesprings extended. Fig. 3 is an enlarged view of the lock of the dilator.v Fig, 4 is a section through the device and Fig. 5 is a section on line5 5, Fig. 1. Referring to the figures by numerals of reference, 1 is atube 0 en at one end, while its other end is closed y a tip 2 andconstitutes a nozzle. Apertures 3 are formed adj acent this tip andconstitute outlets for liquid adapted to be fed in asuitable manner tothe open end of the tube., The tip 2 extends into the tube and hasrooves 4, in which are located the inwardlyent ends 5 of spring-strips6. These strips extend longitunormally lie flat thereon, their otherends being bent at ri ht angles and extending into engagement wit asleeve 7, slidably mounted on the tube. A

ring 8 surrounds the tube and the springstrips 6 and is for the purposehereinafter set forth. I

A handle consisting of a cylinder 9 is suitably secured upon the tube 1near its inlet end, and secured to this handle is a channeled strip 10,having notches 11 in one edge and an eye 12 at one end. A non-rotatablespring-rod 13 is slidably mounted in the eye and is secured at one endto the sleeve 7,

while its other end has a lateral extension 14, which normally engagesone of the notches 1 1.

In using this instrument the same is first connected to a li uid-su plyby means of a tube, (not shown, and tl e sleeve 7 is slid toward handle9. The spring-stri s 6 are thus drawn taut and caused to lie at upon thetube 1. .After'this adjustment the end of the tube is inserted into thecavity to be treated, and sleeve 7 is then slid forward. This causes thespring-strips 6 to bend, as shown in Fig. 2, and they Will dilate thewalls of the cavity. The sleeve is slid by means of the rod 13, whichextends close to the inlet end of the tube-1. After the properadjustment of the sleeve the rod-is sprung into engagement with thenearest notch 11, and the parts are thus securely locked. The device canthen be rotated so as to cause the strips 6 toscrape or cut away anyaccumulations or growthsupon the walls, after which suitable liquid isdirected through the nozzle and into the cavity. The s ring-strips 6 canbe adjusted to cavities oi different sizes by means of ring 8. bowedportions of the springs can be diminished, and by moving it in anopposite direction said bows are increased in size.-

It will be understood that thedevice can be used either as a dilator,curette, or douche or can be utilized for all three purposessimultaneously. Iattach importance to the particular means for adjustingand locking the sleeve, as said means are at all times within convenientreach of the operator.

Having thus fully described my invention,

By sliding this ring forward the 1. The combination with a nozzle havinga tip in one end; of spring-strips secured at one end by said tip, anon-rotatable sleeve u on the nozzle and secured to the strips, a noteed locking-strip, a spring-actuating rod secured to the sleeve andextending into and guided by the locking strip, and an extension on saidrod adj ustably engaging the notched lockingstri 2 The combination witha nozzle; of 'dilating devices secured to the nozzle, a nonrotatablesleeve mounted on the nozzle and secured to the dilating devices, ahandle conrod secured to the sleeve and extending into Within thelocking-strip, and an extension 10 and guided by the locking-stri saidrod upon the rod adjustably engaging said strip. adapted to be engagedand 100 ed by the In testimony whereof I have signed my strip. name tothis specification in the presence of 3. The combination with a nozzle,of ditwo subscribing witnesses.

lating devices secured to the nozzle, a non- GEO. THRASH. rotatablesleeve upon the nozzle and secured Witnesses:

to said devices, a notched locking-strip, a rod J. B. CAIN,

secured to the sleeve and slidably mounted l J. D. PENLAND.

